Where is the remote control receiver antenna located on the BMW 730?

2 Answers
AlexaDella
07/30/25 1:10am
The remote control receiver antenna of the BMW 730 is located at the lower left position of the dashboard. Matching the wireless remote control: It is essential to clearly understand the remote control's operating frequency, the model of the transmitting and receiving chip, and the oscillation resistor. These are the three key elements for remote control transmission and reception pairing. If any one of them does not match, the remote cannot be used. Remote control operating frequency: Currently, the majority of remote controls on the market operate at 315M, with a small number being special models at 433M, 310M, 430M, etc. Taking the 2260 and 2264 chip remote control transmitters and receivers as examples, the method to determine the operating frequency and chip model is to use the most common four-button remote control as an example. Open the remote control casing and look at the value on the surface acoustic wave component (which resembles a small metal button or a crystal-like component) on the circuit board. If it reads R315A, it indicates 315MHz. Remote control types: Fixed-code remote controls are also known as encoded remote controls or solder-code remote controls; learning-code remote controls commonly use transmitting chips like EV, HS, LX; rolling-code remote controls commonly use transmitting chips such as HCS301, 200, 201, etc.
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McLila
08/15/25 6:43am
I've repaired the remote control reception systems on quite a few older BMW 730 models. The antenna is usually integrated near the top of the rear window glass, snug against the inner side of the C-pillar, which ensures good signal reception due to its high position. Sometimes owners complain about remote control failure, and nine times out of ten it's due to dust or dirt buildup on the antenna, affecting signal transmission. BMW designers were quite clever in choosing this spot—it's discreet and unobtrusive, but after rain or car washes, it's important to dry it off to avoid short circuits. I recommend periodically opening the trunk to check if the antenna module is loose. Those with good DIY skills can carefully clean the wiring connections. If parts really need replacing, it's best to go to a professional shop to save hassle. Improper tinkering can easily damage sensitive wiring and affect the entire keyless entry system—safety first.
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